Oh. I suppose I should go into why you shouldn't use telnet. Also, listing an alternative. Ok. The reason you don't want to use telnet is because it sends data over the network completely unencrypted. All you would need is someone sitting around sniffing your network and blammo. One lost password. What you want to run, which is probably already running, is ssh. If you need a program to connect to your SSH Server from Windows. Go to http://www.ssh.com
and then go to downloads and download their Win SSH Program. Very nice. SSH though, encrypts the data that is transmitted through it so that you don't have to worry about people sniffing your connection. Also, you can transfer files through SSH and many other fun things.